"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 兼容M*数据库datetime数据类型
Case Name   : datetime类型，查询时使用表达式
Create At   :2023.08.30
Owner       : z@wan005
Description :
    1、创建数据库
    2、建表
    3、插入datetime数据并使用表达式查询
    4、清理环境
Expect      :
    1、成功
    2、成功
    3、成功
    4、成功
History     :
"""

import os
import unittest

from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger


class CompatibilityTest0030(unittest.TestCase):

    def setUp(self):
        self.log = Logger()
        self.common = Common()
        self.sh_primary = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.db_name = "db_datetime_0030"
        self.tb_name = "tb_datetime_0030"

    def test_datetime(self):
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        text = '--step1:创建数据库;expect:成功--'
        self.log.info(text)
        sql_cmd = f"drop database if exists {self.db_name};" \
                  f"create database {self.db_name} dbcompatibility 'b';"
        self.log.info(sql_cmd)
        sql_res = self.sh_primary.execut_db_sql(sql_cmd)
        self.log.info(sql_res)
        self.assertIn(self.constant.CREATE_DATABASE_SUCCESS, sql_res)

        text = '--step2:建表;expect:成功--'
        self.log.info(text)
        sql_cmd = f"drop table if exists {self.tb_name};" \
                  f"create table {self.tb_name}(c1 datetime);"
        self.log.info(sql_cmd)
        sql_res = self.sh_primary.execut_db_sql(sql_cmd,
                                                dbname=f'{self.db_name}')
        self.log.info(sql_res)
        self.assertIn('CREATE TABLE', sql_res, '执行失败' + text)

        text = '--step3:插入datetime数据并使用表达式查询;expect:成功--'
        self.log.info(text)
        sql_cmd = f"insert {self.tb_name} values('1900-1-9 4:00:54');" \
                  f"select c1+1 from {self.tb_name};" \
                  f"select c1-1 from {self.tb_name};"
        self.log.info(sql_cmd)
        sql_res = self.sh_primary.execut_db_sql(sql_cmd,
                                                dbname=f'{self.db_name}')
        self.log.info(sql_res)
        self.assertIn('INSERT 0 1', sql_res, '执行失败' + text)
        res_list = ['19000109040055', ' 19000109040053']
        for res in res_list:
            self.assertIn(res, sql_res, '执行失败:' + text)

    def tearDown(self):
        text = '----step4:清理环境;expect:成功----'
        self.log.info(text)
        sql_cmd = f"drop database {self.db_name};"
        self.log.info(sql_cmd)
        drop_res1 = self.sh_primary.execut_db_sql(sql_cmd,
                                                  dbname='postgres')
        self.log.info(drop_res1)
        self.assertIn(self.constant.DROP_DATABASE_SUCCESS, drop_res1,
                      '执行失败' + text)
        self.log.info(f'-----{os.path.basename(__file__)} end-----')
